Mark: I guess you don't comprehend very well. I never said some H's had different 4th gear ratio, however I'm not sure that is true as many of the upgrades we think of happening when the tractor changed to Super, did not in fact happen on that exact date. I know some of the last H's had disc brakes, there is evidence some had C-164 engine. I suspect some may have had high speed 4th, or could have be changed to high speed 4th.
The Super H and 300 both had the higher speed 4th gear and I agree that did make them much better getting a load moving and shifting to fifth.
You are also being misleading with your info. Farmalls C, H and M all received substancial hp increase when they changed to Supers, so much so that SC had almost as much hp as the H, SH had almost as much hp as the M. That however did not make them capable of delivering the performance of the larger tractor for 10,000 hours. You put your SC in field with an H on full load drawbar pull continuous and the SC will be toast in a fraction of the hours an H will go. If you want to make this comparison, lets compare letter series to letter series and Super letter to Super letter.
Like you, I'm not suggesting I put much value on a lot of these 20 hp tractors that fit in 6' high garage doors, however the folks are out there buying them and buying them for that reason, (Storage Space) They are also paying big bucks, pure supply and demand. Doesn't make it right in a farmer's eyes, but it works. Sometimes I'd like to have a larger tractor, in fact I'd like to have one full time, and my choice would be a 656D, however I no longer have any use for a 656D, nor am I going to find space to store it.
I've always said IH made engine mistakes. Number one the SC, 200 and 230 should have had the C-135 engine, it would have made a much better tractor for 3-4 mph steady lugging. Number two, the 460 should never have been built, kind of reminded one of a locomotive with a Volkswagon engine. Number three was 504, how IH ever figured a C-153 gasser was going to match the D-188 diesel is beyond me. The 504 diesel was a very durable tractor and the gasser was a disaster. Number four was the 706. The 282 diesel had worked well at 65 hp and 2000 rpm, and gave many years of trouble free service in 560 and 656. It did not enjoy the same success turning out 75 hp at 2300 rpm in the 706. To me the gasser must give 5,000 hours of trouble free servive between rebuilds and the diesel must go 10,000 hours, that is the true test of a tractor for guy wanting to make a living farming. My friend, those 4 tractors don't cut it, they don't even come close, although I will give SC best marks of the 4.
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